Vulnerability-Lookup

CNVD-2018-20686

Vulnerability from cnvd - Published: 2018-10-11

Title

Cisco IOS XE Software访问控制错误漏洞

Description

Cisco IOS XE Software是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XE Software中的MACsec Key Agreement (MKA) using Extensible Authentication Protocol-Transport Layer Security (EAP-TLS)功能存在访问控制错误漏洞，该漏洞源于受影响的软件中存在逻辑错误，攻击者可通过连接Layer 3接口并发送流量利用该漏洞绕过802.1x网络访问控制，获取网络的访问权限。

Severity

中

Patch Name

Cisco IOS XE Software访问控制错误漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-macsec

Reference

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-macsec

Impacted products

Name
Cisco IOS XE Software

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2018-15372"
    }
  },
  "description": "Cisco IOS XE Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XE Software\u4e2d\u7684MACsec Key Agreement (MKA) using Extensible Authentication Protocol-Transport Layer Security (EAP-TLS)\u529f\u80fd\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53d7\u5f71\u54cd\u7684\u8f6f\u4ef6\u4e2d\u5b58\u5728\u903b\u8f91\u9519\u8bef\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8fde\u63a5Layer 3\u63a5\u53e3\u5e76\u53d1\u9001\u6d41\u91cf\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7802.1x\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\uff0c\u83b7\u53d6\u7f51\u7edc\u7684\u8bbf\u95ee\u6743\u9650\u3002",
  "discovererName": "Cisco",
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  "number": "CNVD-2018-20686",
  "openTime": "2018-10-11",
  "patchDescription": "Cisco IOS XE Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XE Software\u4e2d\u7684MACsec Key Agreement (MKA) using Extensible Authentication Protocol-Transport Layer Security (EAP-TLS)\u529f\u80fd\u5b58\u5728\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53d7\u5f71\u54cd\u7684\u8f6f\u4ef6\u4e2d\u5b58\u5728\u903b\u8f91\u9519\u8bef\uff0c\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8fde\u63a5Layer 3\u63a5\u53e3\u5e76\u53d1\u9001\u6d41\u91cf\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7802.1x\u7f51\u7edc\u8bbf\u95ee\u63a7\u5236\uff0c\u83b7\u53d6\u7f51\u7edc\u7684\u8bbf\u95ee\u6743\u9650\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Cisco IOS XE Software\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco IOS XE Software"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-macsec",
  "serverity": "\u4e2d",
  "submitTime": "2018-10-08",
  "title": "Cisco IOS XE Software\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2018-15372 (GCVE-0-2018-15372)

Vulnerability from cvelistv5 – Published: 2018-10-05 14:00 – Updated: 2024-11-26 14:35

Title

Cisco IOS XE Software MACsec MKA Using EAP-TLS Authentication Bypass Vulnerability

Summary

A vulnerability in the MACsec Key Agreement (MKA) using Extensible Authentication Protocol-Transport Layer Security (EAP-TLS) functionality of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to bypass authentication and pass traffic through a Layer 3 interface of an affected device. The vulnerability is due to a logic error in the affected software. An attacker could exploit this vulnerability by connecting to and passing traffic through a Layer 3 interface of an affected device, if the interface is configured for MACsec MKA using EAP-TLS and is running in access-session closed mode. A successful exploit could allow the attacker to bypass 802.1x network access controls and gain access to the network.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-25 18:51 UTC

CWE

CWE-284

Assigner

cisco mitre root

References

2 references

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
http://www.securityfocus.com/bid/105416	vdb-entryx_refsource_BID

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco IOS XE Software	Affected: n/a

Date Public

2018-09-26 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T09:54:03.390Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20180926 Cisco IOS XE Software MACsec MKA Using EAP-TLS Authentication Bypass Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-macsec"
          },
          {
            "name": "105416",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/105416"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2018-15372",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-25T18:51:16.069554Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-26T14:35:55.702Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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          "product": "Cisco IOS XE Software",
          "vendor": "Cisco",
          "versions": [
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
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              "description": "CWE-284",
              "lang": "en",
              "type": "CWE"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2018-10-07T09:57:02.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20180926 Cisco IOS XE Software MACsec MKA Using EAP-TLS Authentication Bypass Vulnerability",
          "tags": [
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            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-macsec"
        },
        {
          "name": "105416",
          "tags": [
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            "x_refsource_BID"
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          "url": "http://www.securityfocus.com/bid/105416"
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        ],
        "discovery": "UNKNOWN"
      },
      "title": "Cisco IOS XE Software MACsec MKA Using EAP-TLS Authentication Bypass Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
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          "STATE": "PUBLIC",
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        },
        "affects": {
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              "url": "http://www.securityfocus.com/bid/105416"
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2018-20686

CVE-2018-15372 (GCVE-0-2018-15372)

Tags

Sightings

Nomenclature

Related by attack behaviour